/*
 * Copyright Konstantin Triger <kostat@gmail.com> 
 * 
 * This file is part of Jaque - JAva QUEry library <http://code.google.com/p/jaque/>.
 * 
 * Jaque is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Jaque is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

package jaque.functions;

/**
 * Interface combining the capabilities of a function and aggregate.
 * Aggregate is a function type with a method which has the following signature:
 * {@code Result invoke(Result, T)}
 * 
 * <p/> The first argument represents an aggregated result of the objects
 * preceding the current object. <br/> The second parameter represents the
 * current object. <br/> The function returns the aggregated result of all the
 * objects, including current.
 * 
 * @param <Result>
 *            the type of the aggregated result.
 * @param <T>
 *            the type of the objects being aggregated.
 * 
 * @author <a href="mailto://object_streaming@googlegroups.com">Konstantin Triger</a> 
 */
public interface AggregateFunction<Result, T> extends Function<Result, T>,
		Function2<Result, Result, T> {
}
